calculate truss lower chord zero value

[m_nikazis]

When  I calculate steel truss, lower chord Moment and other forces is zero! in Full force table is normal value, but lower chord zero! RSA2020 and 2021

https://prnt.sc/12mrnt3 

[m_nikazis]

truss design

[Rafacascudo]

hard to tell without the model ,as we don´t where are bar 65, supports ,loads.

Zip it before attaching ,if possible.

ps:pictures can be attached to message body. no need of an external link

[Krzysztof_Wasik]

Hi @m_nikazis 

Forces table shows (by default) force values in bar end-nodes only. Since lower chord is defined as one continuous beam which goes beyond diagonals and probably is not supported at the end, axial force in lower chord end-nodes is zero.

To see forces in lower chord intermediate points, you have to present more points along chord length. Click right mouse button on active table > then Table columns from context menu > go to Division points tab. Select as many points as you need for presentation.